Back to Resource Library Observed free play patterns of children with ADHD and their real-life friends Hoza, B., Mrug, S., Gerdes, A.C., Hinshaw, S.P., Bukowski, W.M., Gold, J.A., Kraemer, H.C., Pelham, W.E., Wigal, T., Arnold, L.E. · 2005 ★ NIFPlay Rating: 5 Rating Scale 10 Rigorous play-specific science 6–9 General biological science 5 Sound play research (uncontrolled) 1–4 Less rigorous / indirect 0 Indirect but high value Naturalistic observation of how children with ADHD play with their actual friends, finding disrupted play patterns that differ from both typical children and previously studied unfamiliar peers. View Resource